ID   IF2P_PYRCJ              Reviewed;         592 AA.
AC   A3MTU7;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   03-APR-2007, sequence version 1.
DT   03-AUG-2022, entry version 88.
DE   RecName: Full=Probable translation initiation factor IF-2 {ECO:0000255|HAMAP-Rule:MF_00100};
GN   Name=infB {ECO:0000255|HAMAP-Rule:MF_00100}; OrderedLocusNames=Pcal_0638;
OS   Pyrobaculum calidifontis (strain DSM 21063 / JCM 11548 / VA1).
OC   Archaea; Crenarchaeota; Thermoprotei; Thermoproteales; Thermoproteaceae;
OC   Pyrobaculum.
OX   NCBI_TaxID=410359;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 21063 / JCM 11548 / VA1;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Glavina del Rio T., Dalin E.,
RA   Tice H., Pitluck S., Chain P., Malfatti S., Shin M., Vergez L., Schmutz J.,
RA   Larimer F., Land M., Hauser L., Kyrpides N., Mikhailova N., Cozen A.E.,
RA   Fitz-Gibbon S.T., House C.H., Saltikov C., Lowe T.M., Richardson P.;
RT   "Complete sequence of Pyrobaculum calidifontis JCM 11548.";
RL   Submitted (FEB-2007) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Function in general translation initiation by promoting the
CC       binding of the formylmethionine-tRNA to ribosomes. Seems to function
CC       along with eIF-2. {ECO:0000255|HAMAP-Rule:MF_00100}.
CC   -!- SIMILARITY: Belongs to the TRAFAC class translation factor GTPase
CC       superfamily. Classic translation factor GTPase family. IF-2 subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_00100}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; CP000561; ABO08064.1; -; Genomic_DNA.
DR   AlphaFoldDB; A3MTU7; -.
DR   SMR; A3MTU7; -.
DR   STRING; 410359.Pcal_0638; -.
DR   EnsemblBacteria; ABO08064; ABO08064; Pcal_0638.
DR   KEGG; pcl:Pcal_0638; -.
DR   eggNOG; arCOG01560; Archaea.
DR   HOGENOM; CLU_002656_3_3_2; -.
DR   OMA; FRQSKPA; -.
DR   Proteomes; UP000001431; Chromosome.
DR   GO; GO:0005525; F:GTP binding; IEA:UniProtKB-KW.
DR   GO; GO:0003924; F:GTPase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0003743; F:translation initiation factor activity; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.40.50.10050; -; 1.
DR   Gene3D; 3.40.50.300; -; 1.
DR   HAMAP; MF_00100_A; IF_2_A; 1.
DR   InterPro; IPR004161; EFTu-like_2.
DR   InterPro; IPR029459; EFTU-type.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   InterPro; IPR005225; Small_GTP-bd_dom.
DR   InterPro; IPR000795; T_Tr_GTP-bd_dom.
DR   InterPro; IPR004544; TF_aIF-2_arc.
DR   InterPro; IPR015760; TIF_IF2.
DR   InterPro; IPR023115; TIF_IF2_dom3.
DR   InterPro; IPR036925; TIF_IF2_dom3_sf.
DR   InterPro; IPR009000; Transl_B-barrel_sf.
DR   PANTHER; PTHR43381; PTHR43381; 1.
DR   Pfam; PF00009; GTP_EFTU; 1.
DR   Pfam; PF03144; GTP_EFTU_D2; 1.
DR   Pfam; PF14578; GTP_EFTU_D4; 1.
DR   Pfam; PF11987; IF-2; 1.
DR   PRINTS; PR00315; ELONGATNFCT.
DR   SUPFAM; SSF50447; SSF50447; 1.
DR   SUPFAM; SSF52156; SSF52156; 1.
DR   SUPFAM; SSF52540; SSF52540; 1.
DR   TIGRFAMs; TIGR00491; aIF-2; 1.
DR   TIGRFAMs; TIGR00231; small_GTP; 1.
DR   PROSITE; PS51722; G_TR_2; 1.
PE   3: Inferred from homology;
KW   GTP-binding; Initiation factor; Nucleotide-binding; Protein biosynthesis.
FT   CHAIN           1..592
FT                   /note="Probable translation initiation factor IF-2"
FT                   /id="PRO_0000335533"
FT   DOMAIN          5..226
FT                   /note="tr-type G"
FT   REGION          14..21
FT                   /note="G1"
FT                   /evidence="ECO:0000250"
FT   REGION          39..43
FT                   /note="G2"
FT                   /evidence="ECO:0000250"
FT   REGION          80..83
FT                   /note="G3"
FT                   /evidence="ECO:0000250"
FT   REGION          134..137
FT                   /note="G4"
FT                   /evidence="ECO:0000250"
FT   REGION          202..204
FT                   /note="G5"
FT                   /evidence="ECO:0000250"
FT   BINDING         14..21
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00100"
FT   BINDING         80..84
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00100"
FT   BINDING         134..137
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00100"
SQ   SEQUENCE   592 AA;  65291 MW;  5B7A4F3545646AD1 CRC64;
     MQQKIRSPFV VVMGHVDVGK TLLLDKIRGT SVAYREPGMI TQHIGMSLVP WPAVEKFAGP
     LVDRLKLRGR IWIPGFLFID TPGHAAFSNL RKRGGSVADL AILVVDITSG LEDQGVESLK
     LIQSRGVPFV IAANKLDRIY GWKSVENRPF LFAVEEQEWH AVATLEEQIG KLITQLANLG
     IDADRYDRVR DFSKQVPIVP TSAVTGEGVA DLLLVLAGVS QRFIPREKLQ VRDGPARGVV
     MEVKEERGLG VVADVILYDG KLRKGDVIVT AGLDGSRQAK VRMLIMPKSL EEMRDPEDKF
     MAVQEVEAAA GVRVVAEGLE GVVAGAPLLA VWDPKDLPEA LKSVGEEIAE IKIESDKEGV
     IVRADTFGTL ESIILFLRQQ GVPVRKADVG PPTHKDVVEA VLSRRKNPAY GAILAFNVKV
     PPEVETEAQS SGVKIIRGEI LYRIFDEYVK WSTEVKTKTV EQVLSQLTRP AKIQILPGYV
     FRRSDPAIVG VKVLAGTLKP GVTLAKDGRE VGKVMQIQRQ GKPVAEAVAG DEVAISIQGD
     VIVGRQIKEG DVLYVYIPDE QARQWLFRYK QYLRKDEVEA LEEYLKTRKK SA